EP1946631A1 - Machine de travail agricole - Google Patents

Machine de travail agricole Download PDF

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Publication number
EP1946631A1
EP1946631A1 EP08100424A EP08100424A EP1946631A1 EP 1946631 A1 EP1946631 A1 EP 1946631A1 EP 08100424 A EP08100424 A EP 08100424A EP 08100424 A EP08100424 A EP 08100424A EP 1946631 A1 EP1946631 A1 EP 1946631A1
Authority
EP
European Patent Office
Prior art keywords
speed
crop
agricultural
engine
forage harvester
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08100424A
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German (de)
English (en)
Other versions
EP1946631B1 (fr
Inventor
Ludger Hugenroth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Claas Selbstfahrende Erntemaschinen GmbH
Original Assignee
Claas Selbstfahrende Erntemaschinen GmbH
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Application filed by Claas Selbstfahrende Erntemaschinen GmbH filed Critical Claas Selbstfahrende Erntemaschinen GmbH
Publication of EP1946631A1 publication Critical patent/EP1946631A1/fr
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Publication of EP1946631B1 publication Critical patent/EP1946631B1/fr
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
    • A01D41/12—Details of combines
    • A01D41/127—Control or measuring arrangements specially adapted for combines
    • A01D41/1274—Control or measuring arrangements specially adapted for combines for drives

Definitions

  • the invention relates to a method for operating an agricultural working machine, in particular a forage harvester, according to the preamble of claim 1 and an agricultural working machine for carrying out the method according to the preamble of claim 7.
  • a method for crop throughput control which regulates the throughput of an agricultural machine designed as a forage harvester by monitoring the rotational speed of the chopper drum.
  • the drive motor of the forage harvester is operated in the usual way in a speed range in which the maximum engine power is available.
  • the presettable speed of the chopper drum varies. If the speed of the chopper drum falls below a preset minimum value, the driving speed and thus also the quantity of newly picked crop material are reduced by suitable control devices until the rotational speed of the chopper drum returns to a speed range which is above the pre-set minimum value.
  • the driving speed of the agricultural work machine is increased when the torque provided by the available engine power is above the torque required to operate the forage harvester, with threshold values also being used in this case, if the speed is exceeded or not reached of the forage harvester is effected.
  • both methods have the disadvantage that the drive motor is always operated in the region of high engine speeds, which cause a strong acceleration of the crop because of the usually fixed gear ratios between the drive motor and the driven by him working members, so that the crop with very high Speed is promoted by the agricultural machine.
  • This effect is achieved, in particular, by operating the drive motor with lower engine power and improved specific fuel consumption.
  • the lower engine speed because of the reduced speed of the work organs causes the crop is less intensively accelerated, so that in particular the energy required to accelerate the crop decreases, which ultimately leads to the lower provided by the drive motor engine performance.
  • the reduced engine speed defines a part load operating point whose speed range is below the engine speed of the maximum engine power defining the full load operating point so that the now lower engine speed also results in lower fuel demand.
  • a particularly fuel-efficient implementation of high crop throughput is achieved when the reduced engine speed is about 10.15% below the engine speed of maximum engine power.
  • This fuel-efficient implementation of a high Erntegut besatzes is also still favored if at the same time the raised at part load operating speed in a range of 20..30% above the vehicle speed when operating the at least one drive motor in the full load operating point defining speed range of maximum engine power.
  • Such a structure of the method according to the invention has the particular advantage that the energy-optimized operating point of the agricultural machine is determined systematically and thus quickly.
  • the agricultural work machine includes at least one engine speed measurement and display unit and a vehicle speed measurement and display unit, and wherein there are means for varying the engine speed and vehicle speed so that the agricultural machine achieves maximum crop throughput by reducing the engine speed Engine speed edited while increasing the driving speed, a device is provided, which makes it possible to process high Erntegut knock instruments with lower specific energy consumption.
  • this effect is achieved in particular by operating the drive motor with a lower engine power and an improved specific fuel consumption.
  • the lower engine speed due to the reduced speed of the work organs causes the crop is less intensively accelerated, so that in particular the energy required to accelerate the crop decreases, which ultimately leads to the lesser provided by the drive motor engine performance.
  • the means for changing the engine speed and the driving speed are known per se, operated by the operator of the agricultural machine operating lever for adjusting the driving speed and the engine speed of the drive motor formed in this way, the inventive method by means of anyway in the agricultural work machine integrated controls are realized.
  • the agricultural machine comprises means for sensing the Erntegut besatzes and / or fuel consumption and at least one control and regulating unit, wherein the control unit in response to the generated Erntegut tellsatz- and / or fuel consumption signals, the engine speed of at least a drive motor and the driving speed of the agricultural machine regulates.
  • a particularly efficient control of the agricultural machine according to the method of the invention is achieved when the control criterion is limited to operating the agricultural machine at maximum crop throughput.
  • control unit is coupled to change the engine speed in a data-exchangeable manner with the motor control of the at least one drive motor and the control of the travel drive.
  • Fig. 1 is an executed as a self-propelled forage harvester 2 agricultural machine 1 shown, which is associated with a so-called pickup 6 in the front area for receiving the stored in a Erntegutschwad 3 on the ground 4 crop 5.
  • an arbitrarily designed attachment 7 for receiving crop 5 can be adapted.
  • the crop 5 is transferred from the pickup 6 to paired collection devices 9 designed as intake and pre-compression rollers 8, which first pre-compact the crop 5 and finally transfer it to the chopper drum 10 in its rearward region.
  • the rotating knives 11 of the chopper drum 10 in cooperation with a stationary counter-blade 12, chop up the crop 5 and eventually transfer it, in the rear area of the chopper drum 10, to after-shredding devices 13, such as so-called grain crackers.
  • the usually also arranged in pairs and in opposite directions circulating Nachzerklein mecanicsorgane 13 finally pass the crop 5 to a Nachbeschreiber 14 which increases the kinetic energy of the crop 5 so that the crop 5 through a top open spout 15 and out this can emerge for transfer to an unillustrated transport vehicle.
  • the intake members 9, the chopper drum 10, the post-shredding members 13 and the post-accelerator 14 form the working members 16 of the forage harvester 2.
  • the forage harvester 2 has at least one drive motor 20, which is coupled to a main gear 21.
  • a belt drive 23 for driving the working members 16 is supplied with drive energy via a first main transmission output 22.
  • the forage harvester can also be designed so that the intake elements 9 are driven continuously.
  • a per se known and therefore not shown hydromotor hydraulic pump unit 17 with adjustable displacement volume would draw its drive energy via suitable transmission members of the belt drive 23.
  • a further main transmission output 24 is coupled to one or more mechanical and / or hydraulic transmission stages 25, which finally supply the drive energy to the one or more drive axles 27 of the forage harvester 2 in a manner known per se via suitable wheel drives 26.
  • the gear stages 25, the wheel drives 26 and the drive axles 27 and not shown mechanical and / or hydraulic transmission elements generally form the drive 32 of the agricultural forage harvester 2 exported agricultural machine.
  • At least one drive motor 20 is already assigned a motor control 33 by the manufacturer, which on the one hand enables control of the engine speed n M and which, on the other hand, can determine and output different parameters of the drive motor 20, as described in more detail below.
  • the driving speed v f of the forage harvester 2 is determined by means of a speed sensor 34 associated with an impeller 29 in such a way that the speed signal Z generated by the speed sensor 34 is transferred to a computation unit 36 arranged, for example, in the driver's cab 35, which then moves out of the known geometric relationships of the impeller 29 and the position of the rotational speed sensor 34 determines a vehicle speed v f and visualized in a coupled to the arithmetic unit 36 display unit 37.
  • the arithmetic unit 36 may be part of a complex control and regulating unit 38, which at the same time can ascertain, monitor and modify parameters of the agricultural machine 1 to be described in greater detail.
  • the forage harvester 2 shown in the embodiment is a per se known throughput measuring device 39, such as in the DE 195 24 752 - The content of which is hereby intended to become part of this description - described, which generates a Erntegut malficientsignal Y, which is also passed to the arithmetic unit 36 or a complex control unit 38.
  • a crop forage harvester 2 continuous crop throughput 40 determined, which in turn can be visualized in the display unit 37.
  • at least one driving lever 41 for manually changing the driving speed v f of the forage harvester 2 and at least one further operating lever 42 for changing the engine speed n M are arranged in the driver's cab. It is within the scope of the invention that the functions of the drive lever 41 and the described operating lever 42 can also be integrated into a single operating lever or can be selected and edited via an input terminal 43.
  • the operation of the forage harvester 2 generally proceeds by initially setting the engine speed n M via the operating lever 42, at which the maximum engine power P max is available.
  • P max the maximum engine power
  • the travel speed V f of the forage harvester 2 is at a maximum processable crop throughput at, for example, 6 km / h.
  • the agricultural working machine 1 embodied as a forage harvester 2 has a computing unit 36 and / or a complex, more complex control and regulating unit 38 which contains it, wherein in the further description, for reasons of simplification, reference is made solely to the control and regulating unit 38, However, the further description could similarly refer to the arithmetic unit 36 alone.
  • the rotational speed signals Z generated by the rotational speed sensor 34 as well as the crop throughput signals Y generated by the throughput measuring device 39 are transmitted from the respective sensors 34, 39 to the control and regulating unit 38.
  • Algorithms are stored in the control and regulation unit 38 in a manner known per se, which determine the travel speed v f of the agricultural work machine 1 and the crop throughput 40 currently being processed by the agricultural work machine 1 from the rotational speed signals Z and the crop throughput signals Y. Both the travel speed v f and the determined throughput 40 can, as already described, in a display unit 37 for the operator of the agricultural Working machine 1 are visualized so that it is permanently informed about the current value of these parameters.
  • the control and regulating device 38 is coupled to the motor control 33 of the at least one drive motor 20 in a data-exchangeable manner.
  • the engine controller 33 is adapted to transmit to the controller 38 at least the instantaneous engine speed 46, the current fuel consumption 47, the currently available engine power P, and, analogously, the currently available engine torque M. It is within the scope of the invention that the parameters 46, 47, P, M transmitted by the motor control 33 can also be visualized in the display unit 37. Furthermore, the chopper drum 10 can be assigned a speed measuring device 48, which transmits a chopper drum speed signal X to the control and regulating unit 38, wherein the chopping drum speed 49 ascertainable from this can likewise be displayed in the display unit 37.
  • the inventive method described below is controlled by the operator of the agricultural machine itself.
  • the operator of the forage harvester 2 will initially preselect the engine speed n M by means of the operating lever 42, in which case the at least one drive motor 20 provides the maximum engine power P max .
  • this engine operating point corresponds to the in FIG. 2
  • the driving speed v f of the agricultural machine 1 during harvesting increased until the operating point of the maximum of the forage harvester can be handled by the crop harvester 40 is reached.
  • This maximum manageable crop throughput 40 is generally reached when the available engine power P max no longer allows a further increase in the vehicle speed v f .
  • Another criterion for achieving the maximum Erntegut besatzes 40 may also be the speed drop of the cutterhead 10, which can either be read off precisely on the display unit 37 or is acoustically perceptible.
  • full load operating point 45 is the driving speed v f at maximum manageable Erntegut besatz 40, for example, 6 km / h.
  • This driving speed value can also be read by the operator in the display unit 37, as already described.
  • the vehicle speed v f By the operator of the Agricultural machine 1 after reaching the maximum Erntegut besatzes 40 gradually increases by pressing the drive lever 41, the vehicle speed v f , at the same time decreases because of the limited available drive power P of the drive motor 20, the engine speed n M.
  • the above-described setting steps for the driving speed V f and the engine speed n M can also be made directly by the operator of the agricultural working machine 1, depending on the crop throughput 40 visualized in the display unit 37
  • the adjustment steps of the method according to the invention are then repeated until the crop throughput 40 visualized in the display unit 37 almost coincides with the crop throughput 40 at full load operating point 45 at the partial load operating point 50.
  • control and regulation unit 38 is also coupled to the travel drive 28 associated drive control 51 data exchange, can In addition, an automatic adjustment of the vehicle speed v f and the engine speed n M , described in more detail below, is made.
  • the maximum achievable throughput 40 would first again determined in the manner described above, wherein the control unit 38 depending on the equipment level of the forage harvester 2, the engine speed n M of the drive motor 20 and the vehicle speed V f of the forage harvester 2 and optionally the maximum Erntegut trimsatz 40 determined, stored and visualized in the display unit 37.
  • the control unit In a next step, the control unit generates a vehicle speed signal V to increase the vehicle speed V f and an engine speed signal W to reduce the engine speed n M , these steps are repeated until the previously determined maximum Erntegut besatz 40 is reached again. Due to the fact that the reduction of the engine speed n M leads to the reduction of the rotational speeds of the various working members 16 of the forage harvester 2, the intake speed of the intake and pre-compression rollers 8 is reduced and the crop throughput 40 would decrease. However, by increasing the travel speed V f , the forage harvester 2 now picks up more crop material 5 in a defined time interval so that the crop throughput-reducing effect of a lower engine speed n M can be compensated for by the higher travel speed v f .
  • curves 52 can now be stored in the control and regulation unit 38 which define the necessary driving speeds v f and engine speeds n M for a constant Erntegut tellsatz 40, Such characteristics 52 have the particular advantage that a throughput measuring device 39 is unnecessary.
  • a particularly efficient implementation of the method according to the invention results when the method is used in particular for a crop 5 with high mass or density or large particle size.
  • the former is the case, for example, when a very moist crop 5 is harvested and a very high degree of comminution (short cutting length) of the crop 5 is realized on the chopper drum 10. Because of the high water content and the good stratification of short crop particles, such a crop 5 has a high density, which ultimately leads to large masses having to be accelerated and the requisite for this Acceleration energy will be the lower the slower such a structured crop 5 can be promoted by the forage harvester 2.
  • the forage harvester 2 also has a fuel-rail measuring device 53, which according to FIG. 3
  • the method according to the invention and the associated device can also directly take into account the fuel consumption. This can for example be done so that the determined instantaneous fuel consumption 54 is transmitted to the control and regulation unit 38 and, where appropriate, from this to the display unit 37 for visualization. Then either the operator of the agricultural machine 1 or the control unit 38 in reducing the engine speed n M and the increase of the vehicle speed v f at the same time determine a part load operating point 50, which ensures the best fuel economy when coping with the maximum Erntegut besatzes 40.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)
  • Soil Working Implements (AREA)
  • Medicines Containing Plant Substances (AREA)
EP08100424A 2007-01-24 2008-01-14 Machine de travail agricole Not-in-force EP1946631B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007004576A DE102007004576A1 (de) 2007-01-24 2007-01-24 Landwirtschaftliche Arbeitsmaschine

Publications (2)

Publication Number Publication Date
EP1946631A1 true EP1946631A1 (fr) 2008-07-23
EP1946631B1 EP1946631B1 (fr) 2011-03-23

Family

ID=39186747

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08100424A Not-in-force EP1946631B1 (fr) 2007-01-24 2008-01-14 Machine de travail agricole

Country Status (4)

Country Link
US (1) US8061112B2 (fr)
EP (1) EP1946631B1 (fr)
AT (1) ATE502519T1 (fr)
DE (2) DE102007004576A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2223588A3 (fr) * 2009-02-27 2010-10-06 Deere & Company Récolteuse automobile
EP2702854A1 (fr) * 2012-07-03 2014-03-05 CLAAS Selbstfahrende Erntemaschinen GmbH Machine agricole automobile
EP3469881A1 (fr) * 2017-09-15 2019-04-17 CLAAS Selbstfahrende Erntemaschinen GmbH Engin agricole

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008020497A1 (de) * 2008-04-23 2009-11-05 Claas Selbstfahrende Erntemaschinen Gmbh Betriebsverfahren für einen Verbrennungsmotor
US8113114B2 (en) 2008-11-10 2012-02-14 Deere & Company Tractor and baler interaction system
US8504256B2 (en) 2012-01-06 2013-08-06 Cnh America Llc Harvester cruise control
US8968064B2 (en) 2013-01-23 2015-03-03 Ronald J. Kile Agricultural combine harvester with harvesting and winnowing optimization control system
DE102013108208A1 (de) 2013-07-31 2015-02-05 Claas Selbstfahrende Erntemaschinen Gmbh Selbstfahrende Erntemaschine
BE1022961B1 (nl) 2015-07-16 2016-10-24 Cnh Industrial Belgium Nv Werkwijze en toestel voor het regelen van de motorsnelheid van een werkmachine
US11606901B2 (en) * 2019-05-31 2023-03-21 Cnh Industrial America Llc Speed control method and system for harvester
GB202003488D0 (en) * 2020-03-11 2020-04-29 Agco Int Gmbh Agricultural apparatus

Citations (4)

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Publication number Priority date Publication date Assignee Title
US4458471A (en) * 1981-12-31 1984-07-10 Allis-Chalmers Corp. Combine speed control
EP1419687A1 (fr) * 2002-11-13 2004-05-19 CLAAS Selbstfahrende Erntemaschinen GmbH Procédé pour contrôler la vitesse d'une machine de récolte
US20050279070A1 (en) * 2004-06-21 2005-12-22 Peter Pirro Self-propelled harvesting machine
EP1658765A1 (fr) * 2004-11-22 2006-05-24 CLAAS Selbstfahrende Erntemaschinen GmbH Machine de travail agricole avec un moteur d'entraînement

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US3073099A (en) * 1959-03-04 1963-01-15 Massey Ferguson Ltd Combine control system
US4542802A (en) * 1982-04-02 1985-09-24 Woodward Governor Company Engine and transmission control system for combines and the like
HU195345B (en) 1984-02-24 1988-04-28 Mem Mueszaki Intezet Method and regulator for controlling load of machine and speed of a mobile straw cutter
EP0774383A3 (fr) * 1993-06-28 1999-05-26 New Holland Belgium N.V. Procédé de commande pour une moissonneuse auto-propulsée
DE19524752B4 (de) 1995-07-07 2004-08-12 Claas Kgaa Mbh Vorrichtung und Verfahren zur Durchsatzmessung in einer landwirtschaftlichen Erntemaschine
US5947818A (en) * 1997-12-10 1999-09-07 Caterpillar Inc. Drive system for a combine with a rotary threshing system
DE19921466A1 (de) 1999-05-08 2000-11-09 Deere & Co Einrichtung zum Regeln der Vortriebsgeschwindigkeit einer Erntemaschine mit unscharfer Logik
US6675577B2 (en) * 2001-07-13 2004-01-13 Deere & Company Anti-stall transmission control for utility vehicle
US6865870B2 (en) * 2002-01-10 2005-03-15 Cnh America Llc Combine power selection system
DE10260480A1 (de) * 2002-12-21 2004-07-01 Deere & Company, Moline Antriebssystem einer selbstfahrenden Arbeitsmaschine
DE102004059543A1 (de) * 2004-12-09 2006-06-29 Claas Selbstfahrende Erntemaschinen Gmbh Landwirtschaftliche Arbeitsmaschine
US20080034720A1 (en) * 2006-08-11 2008-02-14 Helfrich James C Engine load control for hydrostaticaly driven equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4458471A (en) * 1981-12-31 1984-07-10 Allis-Chalmers Corp. Combine speed control
EP1419687A1 (fr) * 2002-11-13 2004-05-19 CLAAS Selbstfahrende Erntemaschinen GmbH Procédé pour contrôler la vitesse d'une machine de récolte
US20050279070A1 (en) * 2004-06-21 2005-12-22 Peter Pirro Self-propelled harvesting machine
EP1658765A1 (fr) * 2004-11-22 2006-05-24 CLAAS Selbstfahrende Erntemaschinen GmbH Machine de travail agricole avec un moteur d'entraînement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2223588A3 (fr) * 2009-02-27 2010-10-06 Deere & Company Récolteuse automobile
EP2345320A1 (fr) * 2009-02-27 2011-07-20 Deere & Company Récolteuse automobile
US8230667B2 (en) 2009-02-27 2012-07-31 Deere & Company Self-propelled harvesting machine
EP2702854A1 (fr) * 2012-07-03 2014-03-05 CLAAS Selbstfahrende Erntemaschinen GmbH Machine agricole automobile
EP3469881A1 (fr) * 2017-09-15 2019-04-17 CLAAS Selbstfahrende Erntemaschinen GmbH Engin agricole

Also Published As

Publication number Publication date
US8061112B2 (en) 2011-11-22
EP1946631B1 (fr) 2011-03-23
ATE502519T1 (de) 2011-04-15
DE102007004576A1 (de) 2008-07-31
US20080172997A1 (en) 2008-07-24
DE502008002923D1 (de) 2011-05-05

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